Various factors in the Gunnar-man's recent spate of peeing suggest it's psychological rather than physiological, but I am familiar enough with my own tendency to be dogmatic (no pun intended) in analyzing things when I have a preconception about what's going on that I can't rule out it being medical, so its come to the point where it's time to ask the vet if she sees any reason for this sudden flood of urine we're getting to experience.